Definitions

1. verb

to derive or obtain something, especially nourishment, from a source without contributing anything in return

“The parasite in the ecosystem feeds on the nutrients of the plants.”

2. verb

to take advantage of someone or something without giving anything in return, especially for personal gain

“The company parasitizes the startup’s innovative ideas to create their own products.”

3. noun

a person or thing that derives or obtains something, especially nourishment, from a source without contributing anything in return

“The parasite in the relationship drained the partner’s emotional energy.”